The placement of the refrigeration lines will have no effect from other sources as per heat and such. But I do suggest that anyone using their existing A/C system parts to UPGRADE the condenser for a larger condenser (the finned item in front of the radiator) for the R-134a refrigerant. They system Denny and I came up.... I have NO issues with cooling the car no matter what the temperature is outside. Denny's talent for coming up with his own brackets was great and the guys (Dwight) at Classic Air was really great with customer service and making a few different refrigeration lines until they got it correct for what we wanted and needed.
http://www.classicautoair.com/customer-classics.html
